:root {
    --color-bg: #ffffff;
    --color-card: #f8f9fa;
    --color-primary: #0066cc;
    --color-primary-hover: #0052a3;
    --color-danger: #dc3545;
    --color-warning: #856404;
    --color-warning-bg: #fff3cd;
    --color-content-bg: #f1f3f4;
    --color-border: #dee2e6;
    --color-text: #212529;
    --color-text-muted: #6c757d;
    --color-code-bg: #f8f9fa;
    --color-code-text: #0066cc;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --focus-outline: 2px solid #0066cc;
    --focus-outline-danger: 2px solid #dc3545;
    --focus-offset: 2px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
}

.hero {
    text-align: center;
    margin-bottom: 4rem;
    padding: 3rem;
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
}

.hero:focus-within {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1.5rem;
    color: var(--color-primary);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.hero .subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.5;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.section {
    margin: 4rem 0;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    padding: 1.5rem 0;
    text-align: center;
    color: var(--color-primary);
    position: relative;
    font-weight: 600;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: var(--color-primary);
}

.column {
    background: var(--color-card);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    transition: box-shadow 0.2s ease;
    position: relative;
}

.column:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.column:focus-within {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
}

.column.bad:focus-within {
    outline: var(--focus-outline-danger);
}

.column h3 {
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.bad {
    border-left: 3px solid var(--color-danger);
}

.bad h3::before {
    content: '⚠️ ';
}

.bad button {
    background: var(--color-danger);
}

.bad button:hover {
    background: var(--color-danger);
}

.bad button:focus {
    outline: var(--focus-outline-danger);
    outline-offset: var(--focus-offset);
}

.good {
    border-left: 3px solid var(--color-primary);
}

.good h3::before {
    content: '✅ ';
}

.accessibility-note {
    background: var(--color-warning-bg);
    border: 1px solid #ffc107;
    color: var(--color-warning);
    padding: 1rem;
    border-radius: var(--radius);
    margin: 1.5rem 0;
    font-size: 0.875rem;
}

.code-block {
    /*display: none;*/
    background: var(--color-code-bg);
    color: var(--color-code-text);
    padding: 2rem 1.5rem 1rem;
    border-radius: var(--radius);
    overflow-x: auto;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.875rem;
    margin: 1.5rem 0;
    border: 1px solid var(--color-border);
    position: relative;
}

.code-block:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
}

.code-block::before {
    content: 'CODE';
    position: absolute;
    top: -6px;
    right: 15px;
    background: var(--color-primary);
    color: white;
    padding: 10px 8px 0;
    font-size: 0.7rem;
    border-radius: 4px;
    font-weight: 600;
}

.pros-cons {
    margin: 1.5rem 0;
}

.pros-cons h4 {
    margin-bottom: 1rem;
    color: var(--color-text);
    font-size: 1rem;
    font-weight: 600;
}

.pros-cons ul {
    list-style: none;
    padding-left: 0;
}

.pros-cons li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.pros li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.cons li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: var(--color-danger);
    font-weight: bold;
}

/* Interactive Elements */
.js-collapsible {
    color: white;
    cursor: pointer;
    padding: 12px 16px;
    border: none;
    text-align: left;
    outline: none;
    font-size: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    width: 100%;
    font-family: inherit;
    font-weight: 500;
}

.js-wrapper {
    display: flex;
    flex-direction: column-reverse;
}

.js-content {
    display: none;
    background: var(--color-content-bg);
    border: 1px solid var(--color-border);
    border-radius: 0 0 var(--radius) var(--radius);
    margin-bottom: 1rem;
}

.js-content.active {
    display: block;
    padding: 0.5rem;
}

.js-content.active + .js-collapsible {
    border-radius: var(--radius) var(--radius) 0 0;
    margin-bottom: 0;
}

details {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    overflow: hidden;
}

details:focus-within {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
}

summary {
    background: var(--color-primary);
    color: white;
    padding: 12px 16px;
    cursor: pointer;
    font-size: 1rem;
    list-style: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

summary:hover {
    background: var(--color-primary-hover);
}

summary:focus {
    outline: var(--focus-outline);
    outline-offset: -2px;
}

summary::-webkit-details-marker {
    display: none;
}

summary::before {
    content: '▶';
    margin-right: 8px;
    transition: transform 0.2s ease;
    display: inline-block;
}

details[open] summary::before {
    transform: rotate(90deg);
}

details > div {
    padding: 16px;
    background: var(--color-content-bg);
}

/* Modal Styles */
.js-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
}

.js-modal-overlay.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.js-modal-content {
    margin: auto;
    background: var(--color-bg);
    padding: 2rem;
    border-radius: var(--radius);
    max-width: 500px;
    width: 90%;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.js-modal-content:focus {
    outline: var(--focus-outline-danger);
    outline-offset: var(--focus-offset);
}

dialog {
    margin: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    background: var(--color-bg);
    color: var(--color-text);
    box-shadow: var(--shadow);
    max-width: 500px;
    width: 90vw;
}

dialog:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
}

dialog::backdrop {
    background: rgba(0, 0, 0, 0.6);
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    background: var(--color-bg);
    color: var(--color-text);
    transition: all 0.2s ease;
    font-family: inherit;
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: var(--focus-outline);
    outline-offset: 2px;
    border-color: var(--color-border);
}

.form-group input:invalid {
    border-color: var(--color-danger);
}

.form-group input:valid {
    border-color: var(--color-primary);
}

.js-error {
    color: var(--color-danger);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.js-error.active {
    display: block;
}

/* Progress Styles */
.js-progress-container {
    width: 100%;
    background: var(--color-border);
    border-radius: 4px;
    height: 20px;
    margin: 1.5rem 0;
    overflow: hidden;
}

.js-progress-bar {
    height: 100%;
    background: var(--color-danger);
    width: 0;
    transition: width 0.3s ease;
    border-radius: 4px;
}

progress {
    width: 100%;
    height: 20px;
    margin: 1.5rem 0;
    border-radius: 4px;
    border: none;
    background: var(--color-border);
}

progress:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
}

progress::-webkit-progress-bar {
    background-color: var(--color-border);
    border-radius: 4px;
}

progress::-webkit-progress-value {
    background: var(--color-primary);
    border-radius: 4px;
}

progress::-moz-progress-bar {
    background: var(--color-primary);
    border-radius: 4px;
}

/* Button Styles */
button {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1rem;
    margin: 0.5rem 0.5rem 0.5rem 0;
    font-weight: 500;
    transition: all 0.2s ease;
    font-family: inherit;
}

button:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
}

button:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
}

button:disabled {
    background: var(--color-text-muted);
    cursor: not-allowed;
    transform: none;
}

/* Component Styles */
.datalist-container {
    position: relative;
}

input[list] {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23666' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 12px center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-right: 36px;
}

.slider-container {
    margin: 2rem 0;
}

input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--color-border);
    outline: none;
    -webkit-appearance: none;
}

input[type="range"]:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
}

input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: none;
}

.color-input {
    width: 50px;
    height: 32px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    cursor: pointer;
}

.color-input:focus {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
}

.summary-box {
    margin-top: 4rem;
    padding: 2rem;
    background: var(--color-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    text-align: center;
}

.summary-box h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
    font-weight: 600;
}

.zen-quote {
    font-style: italic;
    color: var(--color-text-muted);
    font-size: 1rem;
    margin-top: 1.5rem;
    border-left: 3px solid var(--color-primary);
    padding-left: 1rem;
}

@media (max-width: 768px) {
    .comparison-grid {
        grid-template-columns: 1fr;
    }

    body {
        padding: 1rem;
    }

    .hero {
        padding: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

/* Performance indicators */
.perf-indicator {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 8px;
}

.perf-fast {
    background: rgba(0, 102, 204, 0.1);
    color: var(--color-primary);
}

.perf-slow {
    background: rgba(220, 53, 69, 0.1);
    color: var(--color-danger);
}


/*# sourceMappingURL=/html-over-js/main.612a6b84.css.map */